Hydrator.



' PATENTED NOV. 18, 1906.

A. S. GROGKERB HYDRATOR. APPLICATION PIL'BD JUNE 16 awe/who's THE NORRISPETERS no WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

ALLEN S. GROCKER, OF ROCHESTER, NEW YORK, ASSIGNOR TO LAURENCE ELKUS, OFINDIANAPOLIS, INDIANA.

HYDRATOR.

Application filed June 16,

Specification of Letters Patent.

1906. Serial No. 321,948-

Patented Nov. 13, 1906.

To all whom it Wary concern.-

Be it known that I, ALLEN S. CRooKER, a citizen of the United States,residing in Rochester, in the county of Monroe and State of New York,have invented a new and usefu Improvement in Hydrators, lowing is aspecification.

My invention relates particularly to an improveme'nt in hydrating lime,and especially to its hydration when it is used in the process ofmanufacturing bricks.

The difficulty heretofore has been that in the apparatuses used themoisture does not penetrate to the center of the body of the lime. Thelime was put in pans underneath the cars carrying the bricks in its lumpform usually or in the form of a powder. Steam was then turned onto thecylinder, and the moisture from the steam was taken up by the lime andthe lime hydrated,but not perfectly. In order to obviate thisdifficulty, I have devised the improvement specified hereinafter,

the accompanying drawand described in ings.

Referring to the drawings, Figure 1 represents a front sectionalelevation showin the use of my novel means of agitating the ime. Fig. 2represents in detail the agitating means used in the pan for hydratingthe lime. Fig. 3 is a sectional plan view of the same.

Referring to the drawings, A represents a spiral conveyer, which may berun in either direction, thus working the lime backward and forward.

F F are shafts with paddles B B and flights which break up the lime andmove it backward and forward.

of which the fol-.

C is a shaft which is driven first in one direction and then in theother to get the reverse motion in the shafts and conveyer.

It is thus seen that in my improvement as l set forth the lime as itcommences to hydrate is agitated, the moisture thoroughly distributed,and the lime broken up. As the large pieces of lime commence to hydratethe outer surface becomes soft. This agitation will remove the softparts, and the steam and moisture will then attack the harder core.

D and E represent gate-valves. The object of these valves is to withdrawthe lime without releasing the pressure in the cylinder. The operationis to open the upper valve, the conveyer working the lime toward thedischarge end and will fill the pipe, which maybe of any size. Duringthis time the lower valve will be closed. Then the upper valve can beclosed and the lower one opene and the lime taken out without disturbingthe brick in the cylinder and without releasing the steampressure.

Having thus described my invention, what I claim is-- In a hardening orother cylinder, the combination of a spiral conveyer, shafts, paddles onsaid shafts, means for driving said conveyer and shafts; and meansadapted to withdraw the hydrated lime from said cylinder withoutreleasing the steam-pressure in said cylinder, substantially asdescribed.

In witness whereof I have hereunto set my hand this 14th day of June,1906.

ALLEN S. CROCKER.

In presence of- G. WILLARD R1011, J. E. WOODLAND.

